In some cases a selection of your comments will be published, displaying your name as you provide it and location, unless you state otherwise.

BBC: Water chaos affects thousands in Northern Ireland

In most cases, journals explain the selection process in a statement of their editorial policies and guidelines.

FORBES: Climate Sins and the High Priests of Peer Review

In these cases, selection is probably acting on the cost in materials and energy of making the products of the introduced genes (in other words, the protein that bypasses the herbicide, or the poison that protects against the insect).

ECONOMIST: GM crop plants are less weed-like than weedy